Yep, I'm sure our neighbours think we're really dodgy - especially one neighbour that seems to be judge and jury and has been making snide comments about us not clapping (valid reasons for not doing so, but still).
DBIL moved in with us at the start. He only lives 5 mins away and wasn't supposed to, but he was round to celebrate a birthday before the lockdown when he and I developed the "isolate yourself" symptoms which ran into lockdown and when isolation was 14 day with symptoms.
We decided it was therefore more sensible for him to continue to stay with us (and it helps my anxiety massively that I know he's "safe") and he helps supervise/teach DS when I'm working as DH is full-time WFH in a key worker role.
However, we're both key workers in schools. I'm on reduced hours and on a rota so coming and going at all hours, and he's doing a mix of home working and in school (at odd hours as his school does breakfast and after school). However, due to parking restrictions here, his car is at his, so he leaves here on his bike, cycles to his home, and goes to work (and it lets him check his house).
It looks really suspicious but we are adhering to the guidelines!